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authorFelix Fietkau <nbd@openwrt.org>2008-11-03 10:27:38 (GMT)
committerJohn W. Linville <linville@tuxdriver.com>2008-11-21 16:06:05 (GMT)
commit8b0162a3dc5c30e862b7a73da29e32de3170f5e4 (patch)
treeb37b7930eb666f65a8844e769cc6f861c84c9639
parent6d64360ac56cda95243f15738a06f2a123c663e5 (diff)
downloadlinux-8b0162a3dc5c30e862b7a73da29e32de3170f5e4.tar.xz
ath5k: ignore the return value of ath5k_hw_noise_floor_calibration
Noise floor calibration occasionally fails on Atheros hardware. This is not fatal and can happen if there's simply too much noise on the air. Ignoring the calibration error is the right thing to do here, because when the error is ignored, the hardware will still work, whereas if the error causes the driver to bail out of a bigger configuration function and does not configure the tx queues or the IMR (as is the case in reset.c), the hw no longer works properly until the next reset. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/ath5k/phy.c4
-rw-r--r--drivers/net/wireless/ath5k/reset.c4
2 files changed, 2 insertions, 6 deletions
diff --git a/drivers/net/wireless/ath5k/phy.c b/drivers/net/wireless/ath5k/phy.c
index 69625bf..7ba18e0 100644
--- a/drivers/net/wireless/ath5k/phy.c
+++ b/drivers/net/wireless/ath5k/phy.c
@@ -2196,9 +2196,7 @@ static int ath5k_hw_rf5110_calibrate(struct ath5k_hw *ah,
return ret;
}
- ret = ath5k_hw_noise_floor_calibration(ah, channel->center_freq);
- if (ret)
- return ret;
+ ath5k_hw_noise_floor_calibration(ah, channel->center_freq);
/*
* Re-enable RX/TX and beacons
diff --git a/drivers/net/wireless/ath5k/reset.c b/drivers/net/wireless/ath5k/reset.c
index b51bc03..5003263 100644
--- a/drivers/net/wireless/ath5k/reset.c
+++ b/drivers/net/wireless/ath5k/reset.c
@@ -842,9 +842,7 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum nl80211_iftype op_mode,
*
* XXX: Find an interval that's OK for all cards...
*/
- ret = ath5k_hw_noise_floor_calibration(ah, channel->center_freq);
- if (ret)
- return ret;
+ ath5k_hw_noise_floor_calibration(ah, channel->center_freq);
/*
* Reset queues and start beacon timers at the end of the reset routine